Revenue - Summary of Company's Revenue Based on Nature of Products and Services (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 21,859	$ 20,120
Hardware [Member]
Disaggregation of Revenue [Line Items]
Revenue	14,517	14,239
Consumables [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,456	4,617
Services [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 1,886	$ 1,264

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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+ Details